Virgin Media has declined to comment on yet another DNS outage that hit some of its subscribers on Monday night.

The telco, when quizzed by The Register, admitted that it had suffered yet more downtime woe but refused to explain what was behind the company's recent network wobbles.

A spokesman at the Liberty Global-owned cable firm told us that the outage lasted for "approximately an hour and a half in the North East." He added: "I’m afraid I cannot comment on the reason."

Virgin Media was similarly reticent on its official Twitter account, much to the anger of some customers who asked why the company's network kept repeatedly suffering DNS-related outages.

Worse still, as noted by Reg reader Darren, many of the ISP's punters continue to be "seriously frustrated about the fact it's not possible to modify the router-provided DNS servers in their SuperHub [VM's modem/router combi kit], meaning everyone who wants to switch to another provider needs to do it per device."